---
title: Overview
description: "The Data Repository (CRC) Cell manages the storage and querying of the clinical data stored in the demodata tables. **Chapter 10. Table of Contents** ###### [10.7 Update CRC Cell Data in i2b2 Standalone Admin](https://i2b2.org/docs/10-7-update-crc-cell-data-in-i2b2-standalone-admin/) ###### [10.2 CRC Installation Overview](https://i2b2.org/docs/10-2-crc-installation-overview/) -…"
url: "https://i2b2.org/docs/chapter-10-data-repository-crc-cell-install/"
updated: "2026-09-15"
category: "i2b2 Installation Guide / Chapter 4. Server Install Guide / B. Legacy Approach - Build Each Cell from Source / Chapter 10. Data Repository (CRC) Cell Install"
---

# Overview

The Data Repository (CRC) Cell manages the storage and querying of the clinical data stored in the demodata tables.

  **Chapter 10. Table of Contents**

###### [10.7 Update CRC Cell Data in i2b2 Standalone Admin](https://i2b2.org/docs/10-7-update-crc-cell-data-in-i2b2-standalone-admin/)

###### [10.2 CRC Installation Overview](https://i2b2.org/docs/10-2-crc-installation-overview/)

- [10.2.1 Source Code and Directory Structure](https://i2b2.org/docs/10-2-1-source-code-and-directory-structure/)

###### [10.1 Prerequisites](https://i2b2.org/docs/10-1-prerequisites/)

###### [10.8 Update Path in CRC Tables](https://i2b2.org/docs/10-8-update-path-in-crc-tables/)

###### [10.9 Verify CRC Installation](https://i2b2.org/docs/10-9-verify-crc-installation/)

###### [10.10 Next Steps](https://i2b2.org/docs/10-10-next-steps/)

###### [10.6 Start Services](https://i2b2.org/docs/10-6-start-services/)

###### [10.5 Deployment](https://i2b2.org/docs/10-5-deployment/)

###### [10.4 Configuration](https://i2b2.org/docs/10-4-configuration/)

- [10.4.2 Configure CRC Application Directory Properties](https://i2b2.org/docs/10-4-2-configure-crc-application-directory-properties/)
- [10.4.4 Configure the CRC Properties](https://i2b2.org/docs/10-4-4-configure-the-crc-properties/)
  - [10.4.4.2 Optional Performance Properties](https://i2b2.org/docs/10-4-4-2-optional-performance-properties/)
    - [10.4.4.2.4 Setfinder Query - Lockout Properties](https://i2b2.org/docs/10-4-4-2-4-setfinder-query-lockout-properties/)
    - [10.4.4.2.2 Analysis Plug-in - Queue Properties](https://i2b2.org/docs/10-4-4-2-2-analysis-plug-in-queue-properties/)
    - [10.4.4.2.3 Setfinder Query - Timeout Properties](https://i2b2.org/docs/10-4-4-2-3-setfinder-query-timeout-properties/)
    - [10.4.4.2.1 PDO Paging Properties](https://i2b2.org/docs/10-4-4-2-1-pdo-paging-properties/)
    - [10.4.4.2.5 Setfinder Query - Temp Table Properties](https://i2b2.org/docs/10-4-4-2-5-setfinder-query-temp-table-properties/)
  - [10.4.4.1 Required Environment Properties](https://i2b2.org/docs/10-4-4-1-required-environment-properties/)
    - [10.4.4.1.1 Project Management Cell Properties](https://i2b2.org/docs/10-4-4-1-1-project-management-cell-properties/)
    - [10.4.4.1.4 CRC Service Account Properties](https://i2b2.org/docs/10-4-4-1-4-crc-service-account-properties/)
    - [10.4.4.1.3 Ontology Cell Properties](https://i2b2.org/docs/10-4-4-1-3-ontology-cell-properties/)
    - [10.4.4.1.2 Data Source Lookup Properties](https://i2b2.org/docs/10-4-4-1-2-data-source-lookup-properties/)
- [10.4.1 Configure CRC Build Properties](https://i2b2.org/docs/10-4-1-configure-crc-build-properties/)
- [10.4.5 Data Source Configuration](https://i2b2.org/docs/10-4-5-data-source-configuration/)
- [10.4.3 Configure CRC Loader Properties](https://i2b2.org/docs/10-4-3-configure-crc-loader-properties/)
  - [10.4.3.2 Project Management Cell Properties for CRC Loader](https://i2b2.org/docs/10-4-3-2-project-management-cell-properties-for-crc-loader/)
  - [10.4.3.1 File Repository Cell Properties for CRC Loader](https://i2b2.org/docs/10-4-3-1-file-repository-cell-properties-for-crc-loader/)
  - [10.4.3.3 Data Source Properties for the CRC Loader](https://i2b2.org/docs/10-4-3-3-data-source-properties-for-the-crc-loader/)

###### [10.3 Stop Services](https://i2b2.org/docs/10-3-stop-services/)